Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea48ea33a2bd20a5…

MALICIOUS

PDF

76.2 KB Created: 2020-12-28 01:15:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a9abe8b105e277a3feafc061cb1611f6 SHA-1: d744398f05fd5f718afaa0088118ccb22cb726b0 SHA-256: ea48ea33a2bd20a5cf50f868257350e990159340a9f97dbe7f3f9057395374f8
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link disguised as a game hack, which is a common social engineering tactic to trick users into visiting malicious sites. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that the primary URL leads to known malicious infrastructure. While no scripts were extracted, the document's structure and embedded link strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://cctraff.ru/123?utm_term=the+binding+of+isaac+afterbirth+hack+cheat+engine In PDF document text
    • https://cdn.sqhk.co/jelivapizivo/hfjgQ58/snapping_shoals_bill_pay_phone_number.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374009/normal_5fd14bf842952.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ea53cee-bec1-4a20-9ed8-0c5ad21d1a28/xawetosopedutekakizafav.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/fedawefeke.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/vaserokasovu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/945e5b73-e65a-49fc-b1cc-5649011646f3/return_man_2_flash_espn_games.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/jujagozuj.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/software_architect_resume_samples.pdfIn PDF document text
    • https://s3.amazonaws.com/jixerubowi/auditing_and_assurance_services_16th.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c579c67-f3ef-4d65-b18b-9328a5c8fc21/a_short_guide_to_writing_about_film_8th_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f98f1e45-2eb3-4ff8-a818-b2b4ceaf0edc/zobibi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC72 5404 bytes
SHA-256: 3d7cbc2892083e6904a7086f931e661b8c9f8a48d4cb9f561a13ab3a71c76992
font_01_sfnt_off0000fed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFED1 10816 bytes
SHA-256: bfec7d5f9064579725396601797e14e6ef40a7daf163b8db67d4618e8fcb17d9